“以字行腔”历来都被奉为声乐演唱中最为重要的一大原则。然在声乐演唱实践中真正做到“以字行腔”却有相当大的难度,原因不仅在于对“以字行腔”的理解不一,而且还是声乐演唱的个性使然。笔者围绕应尚能的《以字行腔》,广泛搜集相关论述,对“以字行腔”进行理论与实践的回溯,以期能更好的将其运用到演唱实践中。 “Character line cavity ” has always been regarded as vocal music singing one of the most important principle. However, in the practice of vocal singing, it is quite difficult to achieve “characterization”. The reason is not only the different understanding of “characterizing” but also the individuality of vocal singing. I focus on the “should be able to line”, extensive collection of relevant discourses on the “line” "theory and practice of backtracking, with a view to be able to better use it into the practice of singing.